{"product_id":"moroso-racing-radiator-cap-27-29-psi-high-pressure-63328","title":"Moroso Racing Radiator Cap 27-29 PSI High Pressure | 63328","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eThis is Moroso's higher-pressure racing cap, built for cooling systems that need more headroom than a standard 14-18 lb cap provides. Running at 27-29 lbs, it pushes your coolant's boiling point up further, buying you more margin before you're fighting boil-over on track or under sustained hard load.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eLike the rest of Moroso's radiator cap line, it uses a stainless steel spring that holds its pressure setting over time instead of weakening the way a standard steel spring does, and a solid brass spring retainer that won't rust or seize. The six-sided hex cap design makes it easier to grip and tighten securely, even with gloves on in a tight engine bay.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eFitment: Standard-size radiator filler necks, including Moroso filler neck part numbers 63420, 63465, 63466, 63467, 63485, 63486, 63650, 63651, 63656, 63730, 63740, and 63745.\u003cbr\u003eNote: This cap fits standard-size filler necks generally — not vehicle-specific. Confirm your radiator or filler neck uses a standard-size opening before ordering. This is a high-pressure application; make sure the rest of your cooling system (hoses, radiator, filler neck) is rated to handle 27-29 lb before installing.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eKey features and benefits\u003c\/p\u003e\n\u003cul dir=\"ltr\" class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3 print:block print:space-y-1\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e27-29 lb pressure rating pushes coolant boiling point higher for demanding, high-heat applications\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eStainless steel spring holds an accurate pressure setting over time without rusting\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eSolid brass spring retainer\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eSix-sided (hex) cap design for easier gripping and tightening\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eFits standard-size radiator filler necks across multiple applications\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Moroso","offers":[{"title":"Default Title","offer_id":43037226369120,"sku":"mor63328","price":24.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1398\/9853\/files\/63328.jpg?v=1786536298","url":"https:\/\/www.importimageracing.com\/products\/moroso-racing-radiator-cap-27-29-psi-high-pressure-63328","provider":"Import Image Racing","version":"1.0","type":"link"}